Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"than van tan snippets" » "thanh van tan snippets", "tran van tan snippets", "phan van tan snippets", "than van tuan snippets", "than van ban snippets", "than van tai snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("than van tan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than van tan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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